Blade angle adjusting mechanism of blind

Disclosed is a blade angle adjusting mechanism of a blind. The blade angle adjusting mechanism is arranged on an upper beam which is internally provided with a plurality of fixing cores and a linkage shaft. Each fixing core admits one end of a ladder rope to be fixed on. The linkage shaft penetrates the fixing cores. A stressing end is controlled to drive the fixing cores to rotate. The blade angle adjusting mechanism comprises a rotating mechanism and a dynamic drive unit. The rotating mechanism comprises a worm which rotates under control and a worm gear which is meshed with the worm. The worm gear is connected with the stressing end of the linkage shaft. The dynamic drive unit comprises a power supply and a motor. The worm is controlled by the motor to rotate and drives the worm gear to drive the linkage shaft to rotate. The blind has the advantages that the blades are dynamically controlled to conveniently rotate, and manual switching function is imparted.